View Code of Problem 56

#include<stdio.h>
#include<math.h>
int main()
{
	int a[3],b[3],i;
	scanf("%d:%d:%d\n",&a[0],&a[1],&a[2]);
	scanf("%d:%d:%d",&b[0],&b[1],&b[2]);
	for(i=0;i<3;i++)
	{
		a[i]=abs(a[i]-b[i]);
	}
	printf("%02d:%02d:%02d",a[0],a[1],a[2]);
	return 0;
}

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